julia Questions
3
Problem:
I would like to make julia available for our developers on our corporate network, which has no internet access at all (no proxy), due to sensitive data.
As far as I understand julia is d...
2
Solved
Booleans in Julia, when used in calculations, have numeric values (false = 0, true = 1).
All of the following have expected results:
true + false # 1
false - true # -1
false / true # 0.0
true ÷ fal...
1
Solved
I am aware there are a multitude of questions about running parallel for loops in Julia, using @threads, @distributed, and other methods. I have tried to implement the solutions there with no luck....
Evaporation asked 10/12, 2022 at 19:1
2
Solved
I very (very!) often do this routine in my daily work:
$ j7 # (alias for Julia version 1.7)
julia>
julia> ] activate .
(or similarly) (@v1.8) pkg> activate .
Activating project at `~/MyMW...
Utter asked 9/12, 2022 at 11:13
2
Solved
I'm able to run the following code just fine and it provides the expected result:
julia> using DataFrames, DataFramesMeta
julia> expr = "2*:a+:b"
"2*:a+:b"
julia> df ...
Edik asked 9/12, 2022 at 1:7
2
I have a local module that i wrote in my machine, I am using julia 1.7 and when I want to use this module I write something like this:
@everywhere include("Foo.jl")
using .Foo
this is th...
Wavawave asked 7/12, 2022 at 18:13
3
Solved
I'm debugging a script (which use Plots.jl with GKS QtTerm backend). So I run the script many times. When I run it from terminal like bash> julia pointPlacement.jl it takes for ages to initializ...
2
Solved
I'm looking for a way to replace values in Dataframe column with random numbers. They should be different in every row where the substitution was performed.
For example replacing "X" with...
Greenheart asked 7/12, 2022 at 13:37
2
Solved
In my code
mutable struct frame
Lx::Float64
Ly::Float64
T::Matrix{Float64} #I think the error is here
function frame(
Lx::Float64,
Ly::Float64,
T::Matrix{Float64}
)
return new(Lx, Ly, T)
...
Cullet asked 6/12, 2022 at 15:31
2
Solved
I wonder why operating on Float64 values is faster than operating on Float16:
julia> rnd64 = rand(Float64, 1000);
julia> rnd16 = rand(Float16, 1000);
julia> @benchmark rnd64.^2
Benchmark...
Bussard asked 6/12, 2022 at 14:6
4
Solved
I aim to divide elements of two different interval vectors, alpha, and gamma, and want to store the resultant intervals in a vector form.
I am trying to run this code in Pluto-Julia but not getting...
Somniferous asked 5/12, 2022 at 11:9
2
Solved
I want to extract some information from a .osm.pbf file. I looked through OpenStreetMapX.jl package but didn't find a function to read this data. I am wondering if anyone know a method to read this...
Larisalarissa asked 17/2, 2021 at 9:32
3
Solved
I have a data file data.txt
a
5 b
3 c 7
which I would like to load and have as
julia> loaded_data
3×3 Matrix{Any}:
"" "a" ""
5 "b" ""
3 ...
4
Solved
I want to obtain the execution time of a function in Julia. Here is a minimum working example:
function raise_to(n)
for i in 1:n
y = (1/7)^n
end
end
How to obtain the time it took to execute ...
Followthrough asked 26/3, 2020 at 12:48
2
Solved
Julia REPL tells me that the output of
'c'+2
is 'e': ASCII/Unicode U+0065 (category Ll: Letter, lowercase)
but that the output of
'c'+2-'a'
is 4.
I'm fine with the fact that Chars are identified ...
2
Solved
I am using the PyPlot package in Julia to generate and save several figures. My current approach is to display the figure and then save it using savefig.
using PyPlot
a = rand(50,40)
imshow(a)
sav...
Protozoal asked 18/9, 2016 at 20:44
6
Solved
How can I get the version number for a specific package?
The obvious way is to get the dictionary with all installed packages, and then filter for the one of interest:
pkgs = Pkg.installed();
pkg...
Argot asked 3/9, 2014 at 2:54
1
I have a Dicitionary where the values are lists. I want to sort these lists inside the Dict.
Dict("Income" => ["Top 10%", "Lower 50%", "31 - 40%", "2...
Octavie asked 29/11, 2022 at 14:11
3
I am totally new to Julia!
I would like to install a large number of packages for a project I'm joining.
The project comes with a "Project.toml" file
It seems like there should be a nice ...
Foreglimpse asked 29/4, 2022 at 17:9
5
Solved
I want to create a random Matrix with values of zeros and ones. With this presumption, there will be more zeros instead of ones! So I guess there should be something like a weighted Bernoulli distr...
Darbies asked 26/11, 2022 at 17:35
1
Solved
I am very confused about the purpose of copy. As illustrated in this post, copy creates a shallow copy whereas deepcopy creates an independent object. If you used copy, the underlying references re...
Lakeesha asked 24/11, 2022 at 15:7
0
I have a function with a lot of if/elseif statements. I'm looking for a way to improve the code of this function, replacing IF/ELSEIF. I`m trying to use dictionaries, but I am not sure if it is the...
Eudy asked 22/11, 2022 at 13:5
2
Solved
The annotation attribute in Julia Plots seems to only take tuples of x,y coordinates and a label according to the documentation. Is there any way to do this on a 3D plot? For example:
tvec=0:0.1:4...
Excisable asked 26/12, 2016 at 16:44
4
Solved
Suppose I have a curve y, and two other curves u and l in the form of vectors. How to plot:
plot(y, lab="estimate")
plot!(y-l, lab="lower bound")
plot!(y+u, lab="upper bound")
That is, an asymme...
3
Solved
What is the best way to merge a dictionary in Julia?
> dict1 = Dict("a" => 1, "b" => 2, "c" => 3)
> dict2 = Dict("d" => 4, "e" => 5, "f" => 6)
# merge both dicts
> dict3...
Bureaucratize asked 26/3, 2016 at 20:34
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